There is non.

From the TOS:

4.2 Primal Orange Check.Bitcoin custody, send, and receive operations are performed by Primal's affiliate Zap Solutions, Inc. ("Strike"). By using our **Hosted Wallet Service, ** you agree to be bound by this Agreement, as well as Strike's Terms of Service, as defined at https://strike.me/legal/tos/. Primal reserves the right to change the Wallet Third Party Service provider without prior notice, or to bring some or all of these services in-house. All such changes will be reflected in an update to this Agreement, as further described in Section 9 (Changes to Agreement or Services). 

 I used cashapp back in December to load 10,000 sats but either I forgot how to do it or it no longer works.